# Xweather, free: Air quality API

> The air quality endpoint provides current air quality information for locations globally.

Xweather's air quality API on its Developer plan. It costs $0.00 per 1,000 places. It returns 2 of the 6 key fields we check: Particles, Gases.
We rank 94 plans by price. [OpenWeather's £370 monthly plan](https://datacircle.dev/air-quality-apis/openweather/370-monthly-professional-get-data-2-5-air-pollution/llms.txt) is the cheapest paid plan per 1,000 places: $0.00049.
[WeatherAPI.com](https://datacircle.dev/air-quality-apis/weatherapi-com/7-monthly/llms.txt), [Open-Meteo](https://datacircle.dev/air-quality-apis/open-meteo/99-monthly-api-professional-get-v1-air-quality-air-quality/llms.txt) and [Weatherbit](https://datacircle.dev/air-quality-apis/weatherbit/495-monthly-business-get-v2-0-forecast-airquality/llms.txt) are the best air quality API providers in our benchmark.

- This page: https://datacircle.dev/air-quality-apis/xweather/free
- [Best air quality API in 2026: pricing compared](https://datacircle.dev/best-air-quality-api.txt)
- Get it: https://www.xweather.com/pricing/weather-api-subscription
- Request: `GET https://data.api.xweather.com/airquality/{id}`
- API key: with the plan, on https://www.xweather.com/pricing/weather-api-subscription
- Its API docs: https://www.xweather.com/docs/weather-api/endpoints/airquality
- Sold by: Xweather (https://www.xweather.com)
- Checked: 2026-10-30

## In the answer

- Completeness: 33%
- Particles: ✓
- Gases: ✓

## Price

- $ per 1,000 places: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: 64 other calls

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: The air quality endpoint provides current air quality information for locations globally.

## Data

- Freshness: live
- Keep data: no API terms
- Use data: Developer trial: "Xweather's free developer trial is intended solely for testing Xweather's products and services and is not intended for commercial use."

## Plan

- Pay: $0
- You get: 15,000 credits a month
- Enough for: 3,000 calls a month

## Rate limit

- Batch: 1

## The call

- You send: id. Optional: p, filter, fields, plimit, pskip, psort, lang
- Method: GET
- Path: /airquality/{id}

## About the plan

- Plan: Developer
- Who can get it: anyone outside the US and Canada (inside them, the first 15,000 accesses a month of Pay-as-you-go are free)

## The 33 fields the plan's answer can hold

station ID, city name, state code, country code, latitude, longitude, time zone, unix timestamp, date and time, AQI, AQI category, AQI color, AQI calculation method, dominant pollutant, air quality health index, air quality health index category, air quality health index color, carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide, PM1, PM2.5, PM10, pollutant name, pollutant concentration in parts per billion, pollutant concentration in micrograms per cubic meter, pollutant AQI, pollutant category, pollutant color, pollutant calculation method, data sources, station IDs

## Xweather's plans (4)

- [Xweather, free](https://datacircle.dev/air-quality-apis/xweather/free/llms.txt): $0.00 per 1,000, 33% complete, live
- [Xweather, pay as you go](https://datacircle.dev/air-quality-apis/xweather/pay-as-you-go/llms.txt): $3.00 per 1,000, 33% complete, live
- [Xweather, €300 monthly](https://datacircle.dev/air-quality-apis/xweather/300-monthly/llms.txt): $1.688 per 1,000, 33% complete, live
- [Xweather, contact us](https://datacircle.dev/air-quality-apis/xweather/contact-us/llms.txt): 33% complete, live

## Xweather's calls for this API (1)

- `GET /airquality/{id}`: [Xweather, free](https://datacircle.dev/air-quality-apis/xweather/free/llms.txt)

## Xweather's APIs (3)

- [Xweather: air quality API pricing, 4 plans](https://datacircle.dev/air-quality-apis/xweather/free/llms.txt)
- [Xweather: current weather API pricing, 4 plans](https://datacircle.dev/current-weather-apis/xweather/free/llms.txt)
- [Xweather: weather forecast API pricing, 4 plans](https://datacircle.dev/weather-forecast-apis/xweather/free/llms.txt)

## Xweather: air quality API alternatives

- [Open-Meteo, €29 monthly, API Standard, GET /v1/air-quality, Air quality, full](https://datacircle.dev/air-quality-apis/open-meteo/29-monthly-api-standard-get-v1-air-quality-air-quality-full/llms.txt): $0.098 per 1,000, 100% complete, live
- [Seniverse, CNY 2,000 monthly, Monthly (包月套餐), enterprise performance edition (企业性能版), GET /v3/air/now.json](https://datacircle.dev/air-quality-apis/seniverse/cny-2000-monthly-monthly-enterprise-performance-edition-get-v3-air-now-json/llms.txt): $0.598 per 1,000, 33% complete, live
- [ReefAPI, $15 monthly](https://datacircle.dev/air-quality-apis/reefapi/15-monthly/llms.txt): $1.50 per 1,000, 50% complete, live
- [Omkar Cloud, $148 monthly](https://datacircle.dev/air-quality-apis/omkar-cloud/148-monthly/llms.txt): $1.973 per 1,000, 33% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-30.

- https://www.xweather.com/docs/weather-api/endpoints/airquality
- https://www.xweather.com/docs/weather-api/getting-started/cost-headers
- https://www.xweather.com/docs/weather-api/getting-started/rate-limiting
- https://www.xweather.com/docs/weather-api/getting-started/responses
- https://www.xweather.com/legal
- https://www.xweather.com/pricing/weather-api-pay-as-you-go
- https://www.xweather.com/pricing/weather-api-subscription
- https://www.xweather.com/products/weather-api
- https://www.xweather.com/terms-of-use